reverser was in a deactivated state, the pilots must hold said lever in its idle position to prevent any accidental forward movement. Despite being listed on their manual, S7 Airlines didn't provide a training course for this exact situation. The recorder of Flight 778 revealed that, as the right engine thrust reverser was pulled to its maximum thrust, the left throttle lever moved forward by a little. Because of it, the throttle lever of the left engine was aligned with the reverse thrust lever of the right engine. Few seconds after touch down, the crew decided to reduce the level of the reverse thrust. In order to do this, the crew should push the reverse thrust lever forward. Captain Shibanov then pushed the right reverse lever forward. Simultaneously, the left throttle lever began to move forward as well. At first, the unintentional movement managed to stop and the reverse thrust of the right engine had reached its idle position. However, the crew decided to add another reverse thrust to the right engine. The lever was pulled and the left engine throttle lever was aligned again with the right reverse lever. The crew then decided to reduce the level of the right engine reverse thrust and the left engine lever moved forward again. This time, the throttle moved so much that it produced 60% of forward thrust to the aircraft. Meanwhile, the right engine thrust reverse had been on idle. As the only remaining thrust was the forward thrust from the left engine, the aircraft consequently went into take-off mode. The Airbus take-off system then thought that the crew was going to fly again. Due to the landing configuration that had been set by the crew, the take-off warning tried to alert the crew on the improper configuration. The pilots were surprised by the alarm as it somehow sounded during their landing run. Instead of questioning the possible reasons of its activation, they immediately thought that it was a glitch and as a result they tried to erase the warning from the cockpit central monitor. First Officer Chernykh then reported to the ATC that they had successfully landed at the airport. He then began to notice that the aircraft started to increase its speed. Subsequently, he applied maximum reverse thrust on the right engine. However, because of the safety feature on the Airbus, the system cancelled his action. This was due